Real Housewives of New York star Ramona Singer has called it quits with her husband Mario Singer for good this time. The reality star announced the end of the marriage herself on Thursday, Aug. 7.

Making the confirmation on Twitter, Singer wrote a message that read, "I have decided to move on with my life without Mario. I tried my best to make my marriage work. I am excited for the new chapter in my life."

Singer made her revelation amid swirling ongoing rumors that Mario was unfaithful to her, even though the pair was supposedly trying to make things work. Believing she was on good terms with Mario, Bravo's Andy Cohen asked Singer about her marriage but she surprised him by refusing to answer directly.

"Everyone in my family is great," she said at the network's RHONY reunion show. "We're together now, but I have a daughter, Avery, who I love dearly, who is 19, and because of that, that's all I have to say on the matter."

When asked again by Cohen about the status of her marriage, Singer was more abrupt in her answer and said she did not "want to take this discussion any further."